Rivet-setting machine



ALW@ 2 w29 A. R. HAVENER 397407,91111 RIVET SETTING' MACHINE Y Filled March 21, 1927 4 Sheets-Sheet 1- PF'H 2, H929. A. R. HAVENER HJZQJM RIVET SETTING MACHINE Filed March 2l, 1927 4 Sheets-Sheet 2 Mulg,

pm 2, i929. A. R. HAVENER RIVET SETTING MACHINE 4 Sheets-Sheet Filed March 2l, 1927 l HH III

Apl 2, i929.

A. R. HAVENER ZEM RIVET SETTING MACHINE Filed March 21. A192'? 4 Sheets-Sheet 4 Patented Apr. 2, i929.

ARTHUR I-IAVENER, OF-XTJAYLAND, MASSACHUSETTS, ASSTGNOR TO JU'DSON L.

'THOMSON i/IAN'UEACTURING CO., OF VLTHM, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

RIVET-SETTING MACHINE.

Application filed March 21, 1927. Serial No. 176,905.

This invention relates to a rivet settinglmachine and particularly to a machine for riveting` corrugated metal reinforcing strips to metal ash receptacles or the like.

The object of the invention is to providel a simple, efficient and powerful machine of the character set forth, in which the work rests upon a combined anvil and punch die, said anvil embodying therein a movable central member which recedes during the rivet inserting operation to form a die opening in said anvil, thereby permitting the driver to force the rivet through the work, after which said central member is moved upwardly into position to co-operate withthe other or main portion of the anvil in clinching said rivet to the work.

It is further an object of the invention to so construct the driving mechanism that the driver thereof will have two driving strokes imparted thereto during each cycle of the machine, the first or main stroke engaging a rivet in the rivet carrier and forcing said rivet from said carrier through the work, the rivet punching its hole in the work as it is forced downwardly therethrough, and the final stroke being relatively short as compared 'to the initial stroke and engaging the head of the rivet and causing said rivet to be clinched to said work. f

rlhe invention consists in a machine for setting` rivets in sheet metal as set forth in the following specification and particularly as pointed out in the claims thereof.

Referring to the drawings:

Figure 1 is a front elevation of a rivet set* tingmachine embodying my invention.

Fig. 2 is a side elevation of the machine as viewed from theleft of Fig. 1.

y Fig. 3 is a side elevation of the-machine as viewed from the right of Fig. 1.

Figs. il, 5, 6 and 7 are enlarged detail sectional elevations illustrating dill'erent positions of the rivet inserting and clinching mechanisms. Y

Fig. 8 is a perspective view of the cam. Y

Fig. 9 is a detail view'illustrating a corrugated reinforcing strip attached to a portion of a receptacle.

Like numerals refer to like parts through out the several views of the drawings.

rocker slide 41.

chine and 11 is a driving shaft journalled to rotate in suitable bearings 12 and 13 in said frame. Fast to the driving shaft 11 is a pinion 11i which meshes with a gear 15 ournalled to rotate upon a shaft 16,*said gear forming one member of a clutch 17. Another member 18 of said clutch is rigidly fastened to the shaft 16. The two members 15 and 18 are clutched together as one piece by a suitable mechanism not shown inthe drawings, but well known to those skilled in the art, this mechanism being operated from a treadle, not shown in the drawings, by means of a treadle rod 19. f

The rivets are driven during the setting operation by a driver 20 which is fastened t0 a slide 21 guided in ways 22 in the frame 10. The slide 21 has a vertical reciprocatory motion impar-,ted thereto by a pair of toggle links 23 and 2st which are connected to a connecting rod 25 by a pivotal pin 26. The link 211 is pivoted at 27 to the frame 10 of the machine, while the link 23 is connected to the upper end of the slide 21 by a pin 28. r[he connecting rod 25 is pivotally connected at its opposite end to a crank pin'29 which is fastened to a cam 30, said cam being in turn fastened to the shaft 16. By this mechanism a reciprocatory motion is imparted to the slide 21 and hence to the driver 20.

'lhe rivets are fed from a hopper 31 down a raceway 32 and are separated by a slide 33 to be'fed down a raceway 34 into a carrier 35.

which consists of two carrier members 36 and 3'? fast to springs 38 and 39 respectively, said springs being fastened by a bolt at) to a carrier The carrier slide' 41 has a pin 12 fast thereto which projects through a slot 13 in the frame'of the machine and constitutes a stop to limit the upward movement of the slide 41. rlhe slide Ll1 also has a pin 44 fast thereto, which projects into a slot etiii the lever 16, which is pivoted at 117 tothe frame of the machine, and at its opposite end said leveris provided with a. cam roll 48 which bears against the peripheryof the cam 30. A spring 49 is fastened at one end to the lever 46 and at its other end to the frame 10 and acts to hold the roll Li8 in engagement with the cam 30 during its operation.

Rivets 83 aie transferred from therace- 'way 32t'o the raceway 34, one at a time, by the slide is operated 'by pivoted at 51 to the frame oi1 the machine, and has a rockingn'iovement imparted thereto in one direction by a spring 52 and in the opposite direction by a projection on the rear side or" the connei:tin,gl rod 25.

rlhe operation Vof the slide 33 in transiterring the rivets 83 from the raceway to the raceway is well known to those skilled in the art, and as it forms no part otA this invention requires no further description.

An anvil member 54 also constituting a work suppoi't is mounted yin a block 55, in turnfliastened to yan arm56 'forming a part oi? theQiirame ot the machine. The block 55 is rigidlysecured to said arm 56 by screws 57, and said arm'has a groove 58 extending,l thereacross, in Vwhich a portion 59 oit said block'is liiositioned. An end 50 of the arm 56 provides a rigid rabutment against which fthe'block 55 is braced, thereby provi-:ling a very rigid ysupport tor the anvil member lThe anvil member 54 may be adjusted ver- Vftically m the block by manipulating; a nut [Gland check nut (S2, ai'ter which said anvil.

is secured in place by a set screw (53. l'lhe anvil member is recessed atvits upper extremity at 54 to provide a clincliing;` surface jlor said anvil, and lthe latter also has a bore f`t'ormed' therein in which an auxiliary anvil member 6G is slidably mounted.

The member @Gis shouldered and extends through kvan opening;` 67 which constitutes a punch die,

and the upper extremity' ci said member (36 Ahas an anvil portion iorn'ied thereon, ,which co-operates with the recessed surtace 65 ofthe anvil member 54 toi'form the clinching surface againstwhich the rivet is 'lorced durii'ig the clinchins;` operation.

y "The member l66 recedes or drops downwardly `tor the rivet inserting operation, but

forced upwardly prior to the clincliing;

operaiton by a cam G9 which is pivoted at 70 to theblockii, and said cam is slotted at 7l to i'ori'n arms 72 and`73, the i'ormer `having cam. surfaces 74 and 75 'lormed at its f upper extremity.

Arocking movement imparted to the cam 69 by a connecting rod 7o which is connected at one end thereof at 77 to said cam and at its other end at` 7S to one end ot a A lever 79, theV latter being` pivoted at 8O to the frame 10.v The other eivtremity ot the lever 79 has a cam roll 8l mounted thereon, said roll projecting into a cam groove 82 lorn'ied inthe side the cam 30. As the lower portion of the cani69 is moved forwardly by its ooeratinof mechanism the iortion 74 of said 'cam'is positioned 'beneath the lower exlofithe anvil 55 byl Jche receding movement of the member G6 forming a die opening in said anvil. The cam 69 is tl en rocked by its operating mechanism to torce the anvil member ('56 upwardly until the cam portion is located beneath said member (S6 as illustrated in Fig` 6, vat which timethe-anvil portion 68 at the top oi said member 6G is positioned to co-operate with the recessed portion 64 ol the anvil ii'iember 54 in pei'- l'orining (he clinching operation.

The general operation ot the mechanism hereinbefore specifically described is as follows Assuming the various parts to be in the relative positions illustrated in Figs@ 'l to 4 inclusive, a receptacle A, having, a corriigated metal reinforcingl strip o positioned thereon, is lpositioned 4upon the` anvil meinber 54 as illustrated in Fig. l. p rlhe machine is then started by means of a treadle, not shown, and its connecting;v rod i9 which causes the `clutch 17 to rotate thevshatt 1G and thus the rivets 83 are lied down the race-- ways 32 and 34 to be delivered one by one yinto the rivet cairier 35.

ln Fig. 4 a. rivet 83 is shown in position in the rivet carrier 35 ready to` be driven by the driver 20. The rivet carrier 35, carrying the rivet 83, now moves downwardly to a point just above the work and the driver V2O also moving downwardly engages the rivet 83 in said carrier lforcingv saidv rivet through said carrierin a manner well known lto those skilled in the art and through said work, the prongs oi said rivet projecting into the die opening 67' of the anvilmember 54 as illustrated in Fig. 5.

Villien the driver 2O reaches the bottom'of its stroke, during the rivet inserting operation, the axes ofthe. pins 26, 27 and 28fare all vlocated in alignment with the center line oi the driver 20, but instead of immediately retreating, theconnect-ing,` rod 25 continues to move 'forwardly until at its extreme forward movement the crank pin 29 has moved said connecting' rod to position the toggle links 23 and 24 as illustratedin dotted lines in Fig. 2, e

and during the latter part ott this forward movement the connecting rod 26 has caused said toggle links to litt thedriver slide 21 and driver 30so that the latter will be vpositioned as'illustraiied inFig. 6.

The cam G9 now rocked by its actuating mechanismV toliiit the anvil member 66 and position the lupper extren'iity 68 thereof into necting rod 25 will again cause the driver 20 to move upwardly releasing` the workso that it may be removedv from the anvil, and the cam 69 is again actuated to permit 'the member 66 to recede into the anvil 54 preparatory to another cycle of operations as previously mentioned.

The rivets illustrated as being utilized in connection with the machine of this invention are of the Well-known bifu-rcated type, but it is evident that other forms of rivets, such as, the tubular and solid types may be utilized Without departing from the spirit of tne invention, all of said types of rivets being forced through the Work and either clinched or upset by the mechanism set forth.

I claim i 1. A machine for setting rivets in sheet metal having, in combination, an anvil embodying therein a stationary member and a movable member, the latter being adapted to recede during the rivetinserting operation to form a die opening in said anvil, means to position said movable member into cooperative relation With said stationary member to clinch a rivet, and a driver adapted to co-operate With said anvil to first force a rivet through said sheet metal and finally to clinch said rivetthereto.

2. A machine for setting rivets in sheet metal having, in combination, an anvil provided with a rivet clinching surface and embodying therein a central movable member, the latter being recedeable to form a die opening for said anvil, said movable member having a portion of said clinching` surface formed thereon, means to position said movable member to close said opening and render said clinching surface operable, and a driver adapted to co-operate with said anvil to force a rivet through said sheet metal and clinch said rivet thereto.

3. A machine for setting rivets in sheet metal having, in combination, an anvil provided with a rivet clinching surface and embodying therein va central movable member, the latter being recedeable to form a die 0pen ing for said anvil, said movable member havthe latter being recedeable to form a die open! ing for said anvil, said movable member having a portion of said clinching surface formed therein, a cam engaging said movable member, means to impart a rocking movement to said cam, whereby said movable member is positioned to close said opening and render said clinching surface operable, and a driver adapted to cti-operate with said anvil to first force a rivet through sheet metal and finally to clinch said rivet thereto.

5. A machine for Vsetting rivets in sheet met-al having, in combination, an anvil embodying therein a stationary member and a movable member, the latter having an anvil portion formed upon its upper extremity and being adapted to recede Within said stationary member during the rivet inserting operation and thereby provide a die opening in said anvil, means to advance said movable member to position the anvil portion thereof into' co-eperative relation with said stationary member to clinch a rivet, and a driver adapted to co-operate with said anvil to first force a rivet through said sheet metal and finally to clinch said rivet thereto.

In testimony whereof l have hereunto set my hand.

ARTHUR R. HAVENER. 

